Deep hole drill, drilling method and workpiece processed by the deep hole drill
A technology for deep hole drilling and workpieces, which is applied in the directions of drilling tool accessories, boring/drilling, drilling/drilling equipment, etc., which can solve problems such as damage and achieve the effects of stable side guidance and reduced parallelism deviation
Inactive Publication Date: 2012-08-22
WAERTSILAE SCHWEIZ AG
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Problems solved by technology
[0006] However, since these reservoirs have to reliably withstand large deformations - pressures of 2000 bar or more will easily be reached inside the reservoir and considerable dynamics also occur under the operating conditions of the internal combustion engine Pressure pulsation one, therefore the symmetry of the two holes must be guaranteed with great precision to avoid damage to the oil reservoir and guarantee its safe operation
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[0048] The side-guided deep hole drilling tool of the present invention is figure 1 It is shown in a schematic diagram, and is denoted by reference numeral 1 in the following.
[0049] figure 1 A workpiece 5 is shown, which in the exemplary embodiment is an oil reservoir 5 of a common rail fuel injection system for the fuel supply of a large diesel engine. In the embodiment shown, an auxiliary hole 7 extending along and concentric to the auxiliary drilling axis 71 has been drilled in a known manner, and the drilling of the parallel hole 4 along the drilling axis 41 is in progress and has not yet been completed. . The illustrated deep hole drilling tool 1 according to the present invention comprises a drill 3 which can be driven by a driving device 2 and which has a drill rod 31 and a drill bit 32 for drilling parallel holes 4 concentrically. The drilling axis 41 of the parallel hole 4 and the drilling axis 311 of the drill 3 are substantially identical. The direction of dr...
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Abstract
The invention relates to a deep hole drill, a drilling method and a workpiece processed by the deep hole drill. The deep hole drilling tool (1) includes a drill (3) driven by a driving part (2) and has a boring bar (31) and boring head (32) for drilling the parallel hole (4) in the product (5) along a drilling axis (41). A guide means (6) for guiding the drill is provided to the tool. The guide means is arranged at a drill position so that the guide means is eccentrically guided in an auxiliary hole (7) along an auxiliary drilling axis in order to allow the drilling axis of the parallel hole to be substantially extended in parallel to the auxiliary drilling axis (71) by forming the parallel hole in the product. The boring method by the deep hole drilling tool, the deep hole drilling tool (1), and the product manufactured by the method are proposed.
Description
technical field [0001] The invention relates to a deep hole drilling tool, a drilling method and a workpiece processed by using the deep hole drilling tool of the invention. Background technique [0002] It is a well-known problem in the art, and often an unsolved problem, to provide parallel holes in workpieces with great precision without significant technical effort, such as the use of laser kits or other auxiliary devices. [0003] Specifically, reliable tool guidance is a problem during the drilling of parallel holes, intersecting parallel hole machining has not been solved so far, for example in the fuel reservoir or oil reservoir of the common rail fuel injection system of the internal combustion engine. situation. [0004] For example, in European patent EP 1 413 744, an oil reservoir for a common rail fuel injection system for a large diesel engine (such as a Sulzer RTFlex engine) is shown, which has a hydraulic medium (such as for actuating a large fuel oil for a...
Claims
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IPC IPC(8): B23B51/00B23B49/00B23B41/02B23B41/00F02M55/02F02M63/00
CPCB23B41/00F02M55/025B23B41/02
Inventor T·伊迪里姆A·沃芬斯伯格
Owner WAERTSILAE SCHWEIZ AG